Home / 72,772.07-100,425.45-40,506.00

Finding the Fourth Proportional to 72,772.07, 100,425.45 and 40,506.00

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Solution

The fourth proportional to 72,772.07, 100,425.45 and 40,506.00 is: 55,898.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,772.07 : 100,425.45 = 40,506.00 : x
  2. Step 2: Convert to fraction form
    72,772.07/100,425.45 = 40,506.00/x
  3. Step 3: Cross multiply
    72,772.07x = 100,425.45 × 40,506.00
  4. Step 4: Simplify right side
    72,772.07x = 4,067,832,573.04
  5. Step 5: Solve for x
    x = 4,067,832,573.04/72,772.07
  6. Step 6: Final answer
    x = 55,898.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.